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Following the Srcid or the Srcrng parameter, the user inputs 36 direction‑specific building heights (Dsbh parameter) in meters for the Short Term model, beginning with the 10  degree flow vector (wind blowing toward 10 degrees from north), and incrementing by 10 degrees in a clockwise direction.  For the Long Term model, the Dsbh parameter consists of 16 direction‑specific building heights beginning with the flow vector for the north sector, and proceeding clockwise to north‑northwest.  Some examples of building height inputs are presented below:

 SO BUILDHGT  STACK1  34. 34. 34. 34. 34. 34. 34. 34. 34. 34. 34. 34. SO BUILDHGT  STACK1  34. 34. 34. 34. 34. 34. 34. 34. 34. 34. 34. 34. SO BUILDHGT  STACK1  34. 34. 34. 34. 34. 34. 34. 34. 34. 34. 34. 34.   SO BUILDHGT  STACK1  36*34.0   SO BUILDHGT  STACK1‑STACK10  33*34.0  3*0.0   SO BUILDHGT  STACK1  35.43 36.45 36.37 35.18 32.92 29.66 25.50 20.56 SO BUILDHGT  STACK1  15.00 20.56 25.50 29.66 32.92 35.18 36.37 36.45 SO BUILDHGT  STACK1  35.43 33.33 35.43 36.45  0.00 35.18 32.92 29.66 SO BUILDHGT  STACK1  25.50 20.56 15.00 20.56 25.50 29.66 32.92 35.18 SO BUILDHGT  STACK1  36.37 36.45 35.43 33.33 28

The first example illustrates the use of repeat cards if more than one card is needed to input all of the values.  The values are processed in the order in which they appear in the input file, and are identified as being repeat cards by repeating the Srcid parameter.  The first and second examples produce identical results within the model.  The second one illustrates the use of a repeat value that can simplify numerical input in some cases.  The field "36*34.0" is interpreted by the model as "repeat the value 34.0 a total of 36 times."  This is also used in the third example where the building height is constant for directions of 10 degrees through 330 degrees, and then is set to 0.0 (e.g. the stack may be outside the region of downwash influence) for directions 340 through 360.  The third example also uses a source range rather than a single source ID.  The last example illustrates building heights which vary by direction, and shows that the number of values on each card need not be the same.  For improved readability of the input file, the user may want to put the numerical inputs into "columns," but there are no special rules regarding the spacing of the parameters on this keyword.

151 - 152 - 153 - 154 - 155 - 156 - 157 - 158 - 159 - 160 - 161 - 162 - 163 - 164 - 165 - 166 - 167 - 168 - 169 - 170 - 171 - 172 - 173 - 174 - 175 - 176 - 177 - 178 - 179 - 180 - 181 - 182 - 183 - 184 - 185 - 186 - 187 - 188 - 189 - 190 - 191 - 192 - 193 - 194 - 195 - 196 - 197 - 198 - 199 - 200

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